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題名 | Identification and Control of Hammerstein-type Nonlinear Process=Hammerstein型之非線性程序的識別及控制 |
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作者姓名(中文) | 李銘偉; 黃孝平; |
作者姓名(外文) | Lee, Ming-wei; Huang, Hsiao-ping; |
書刊名 | Journal of the Chinese Institute of Chemical Engineers |
卷期 | 32:4 2001.07[民90.07] |
頁次 | 頁361-371 |
分類號 | 460.02 |
語文 | eng |
關鍵詞 | 非線性程序; 識別; 控制; Hammerstein; Relay feedback; Identification; Controller design; |
中文摘要 | 本文提出利用替續回饋實驗對Hammerstein型之非線性動態程序提出新的識別及控制方法。在操作區間中,模式中的靜態非線性部份是由可逆的函數所構成。藉由試圖建立對稱的輸出信號而作一簡單的最佳化程序來求得此非線性函數中的係數值。並利用所形成的對稱性輸出信號來估算程序的一階帶時延(FOPDT)或二階帶時延(SOPDT)的線性模式。最後,提出利用所識別的模式來針對此類程序作控制的方法。 |
英文摘要 | This work presents and novel means of identification and control Hammerstein-type nonlinear process data from a relay feedback experiment. The static nonlinearity part of the proposed model is represented by an invertible function defined on an operation range. Parameters in this function are determined by means of a simple optimization procedure which aims to obtain a symmetric cycling instrumental output. Based on the instrumental output, a simple transfer function of linear subsystem is determined. The linear subsystem of the model is represented in FOPDT or SOPDT form. Notably, identification of the linear and nonlinear parts is fully decoupled. Finally, control of such process using the identified model is presented. |
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